Recently Google release there first operating system named as Android.Like other service of Google its also a great new looks with many option.though its now upgrading and many new feature are added day by day,it will be a wonderful FREE operating system for all of us.
Just record the image on the disc, placing it in the CD-ROM drive and restart your computer and you can test Android, without installing it and not touching any files on your computer.
Download link :
BANGLA Tutorial For Installing ANDROID :
LINK:How to install android live cd.(In bangla)
Computer Stuffs 